Hayward Pressure Relief Valve Assembly Replacement for Hayward Skimmer Vacuum Plates SuperMax VS Pumps (Pre Nov 2020) Parts and Accessories clean or backwash before pressure

clean or backwash before pressure reaches max to avoid damage

The Pentair 230011 Low Profile Valve Band Clamp is engineered to securely fasten low-profile lids on A&A In-Floor Cleaning Systems

Polaris Vac-Sweep 360 Pressure Relief Valve

Allows secure tightening without tools

and that the base is level and structurally sound

Hayward Pressure Relief Valve Assembly Replacement for Hayward Skimmer Vacuum Plates SuperMax VS Pumps (Pre Nov 2020) Parts and Accessories clean or backwash before pressureThis pressure relief valve assembly replacement is designed to use with Hayward Skimmer vacuum plates series W490R, W491R. Weighs 3 pounds.